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replace Bound with the equivalent Direction2D

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Adam Vogt
2014-05-01 01:15:40 +00:00
parent fcf0545475
commit fb7ca05a63
1 changed files with 27 additions and 28 deletions
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55
XMonad/Layout/BinarySpacePartition.hs
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@@ -20,12 +20,13 @@ module XMonad.Layout.BinarySpacePartition (
, Rotate(..)
, Swap(..)
, ResizeDirectional(..)
, Bound(..)
, Direction2D(..)
) where
import XMonad
import qualified XMonad.StackSet as W
import XMonad.Util.Stack hiding (Zipper)
import XMonad.Util.Types
import qualified Data.Map as M
import Data.List ((\\))
import Control.Monad
@@ -41,14 +42,14 @@ import Control.Monad
--
-- It will be helpful to add the following key bindings
--
-- > , ((modm .|. altMask, xK_l ), sendMessage $ ExpandTowards East)
-- > , ((modm .|. altMask, xK_h ), sendMessage $ ExpandTowards West)
-- > , ((modm .|. altMask, xK_j ), sendMessage $ ExpandTowards South)
-- > , ((modm .|. altMask, xK_k ), sendMessage $ ExpandTowards North)
-- > , ((modm .|. altMask .|. ctrlMask , xK_l ), sendMessage $ ShrinkFrom East)
-- > , ((modm .|. altMask .|. ctrlMask , xK_h ), sendMessage $ ShrinkFrom West)
-- > , ((modm .|. altMask .|. ctrlMask , xK_j ), sendMessage $ ShrinkFrom South)
-- > , ((modm .|. altMask .|. ctrlMask , xK_k ), sendMessage $ ShrinkFrom North)
-- > , ((modm .|. altMask, xK_l ), sendMessage $ ExpandTowards R)
-- > , ((modm .|. altMask, xK_h ), sendMessage $ ExpandTowards L)
-- > , ((modm .|. altMask, xK_j ), sendMessage $ ExpandTowards D)
-- > , ((modm .|. altMask, xK_k ), sendMessage $ ExpandTowards U)
-- > , ((modm .|. altMask .|. ctrlMask , xK_l ), sendMessage $ ShrinkFrom R)
-- > , ((modm .|. altMask .|. ctrlMask , xK_h ), sendMessage $ ShrinkFrom L)
-- > , ((modm .|. altMask .|. ctrlMask , xK_j ), sendMessage $ ShrinkFrom D)
-- > , ((modm .|. altMask .|. ctrlMask , xK_k ), sendMessage $ ShrinkFrom U)
-- > , ((modm, xK_r ), sendMessage Rotate)
-- > , ((modm, xK_s ), sendMessage Swap)
--
@@ -59,7 +60,7 @@ data Rotate = Rotate deriving Typeable
instance Message Rotate
-- |Message for resizing one of the cells in the BSP
data ResizeDirectional = ExpandTowards Bound | ShrinkFrom Bound deriving Typeable
data ResizeDirectional = ExpandTowards Direction2D | ShrinkFrom Direction2D deriving Typeable
instance Message ResizeDirectional
-- |Message for swapping the left child of a split with the right child of split.
@@ -68,8 +69,6 @@ instance Message ResizeDirectional
data Swap = Swap deriving Typeable
instance Message Swap
data Bound = East | West | North | South deriving Typeable
data Direction = Horizontal | Vertical deriving (Show, Read, Eq)
oppositeDirection :: Direction -> Direction
@@ -172,28 +171,28 @@ swapCurrentLeaf (Leaf, []) = Just (Leaf, [])
swapCurrentLeaf (Leaf, c:cs) = Just (Leaf, swapCrumb c:cs)
swapCurrentLeaf _ = Nothing
expandTreeTowards :: Bound -> Zipper Split -> Maybe (Zipper Split)
expandTreeTowards :: Direction2D -> Zipper Split -> Maybe (Zipper Split)
expandTreeTowards _ z@(_, []) = Just z
expandTreeTowards East (t, LeftCrumb s r:cs)
expandTreeTowards R (t, LeftCrumb s r:cs)
| direction s == Vertical = Just (t, LeftCrumb (increaseRatio s 0.1) r:cs)
expandTreeTowards West (t, RightCrumb s l:cs)
expandTreeTowards L (t, RightCrumb s l:cs)
| direction s == Vertical = Just (t, RightCrumb (increaseRatio s (-0.1)) l:cs)
expandTreeTowards South (t, LeftCrumb s r:cs)
expandTreeTowards D (t, LeftCrumb s r:cs)
| direction s == Horizontal = Just (t, LeftCrumb (increaseRatio s 0.1) r:cs)
expandTreeTowards North (t, RightCrumb s l:cs)
expandTreeTowards U (t, RightCrumb s l:cs)
| direction s == Horizontal = Just (t, RightCrumb (increaseRatio s (-0.1)) l:cs)
expandTreeTowards dir z = goUp z >>= expandTreeTowards dir
shrinkTreeFrom :: Bound -> Zipper Split -> Maybe (Zipper Split)
shrinkTreeFrom :: Direction2D -> Zipper Split -> Maybe (Zipper Split)
shrinkTreeFrom _ z@(_, []) = Just z
shrinkTreeFrom East z@(_, LeftCrumb s _:_)
| direction s == Vertical = Just z >>= goSibling >>= expandTreeTowards West
shrinkTreeFrom West z@(_, RightCrumb s _:_)
| direction s == Vertical = Just z >>= goSibling >>= expandTreeTowards East
shrinkTreeFrom South z@(_, LeftCrumb s _:_)
| direction s == Horizontal = Just z >>= goSibling >>= expandTreeTowards North
shrinkTreeFrom North z@(_, RightCrumb s _:_)
| direction s == Horizontal = Just z >>= goSibling >>= expandTreeTowards South
shrinkTreeFrom R z@(_, LeftCrumb s _:_)
| direction s == Vertical = Just z >>= goSibling >>= expandTreeTowards L
shrinkTreeFrom L z@(_, RightCrumb s _:_)
| direction s == Vertical = Just z >>= goSibling >>= expandTreeTowards R
shrinkTreeFrom D z@(_, LeftCrumb s _:_)
| direction s == Horizontal = Just z >>= goSibling >>= expandTreeTowards U
shrinkTreeFrom U z@(_, RightCrumb s _:_)
| direction s == Horizontal = Just z >>= goSibling >>= expandTreeTowards D
shrinkTreeFrom dir z = goUp z >>= shrinkTreeFrom dir
top :: Zipper a -> Zipper a
@@ -260,12 +259,12 @@ swapNth (BinarySpacePartition Nothing) _ = emptyBSP
swapNth b@(BinarySpacePartition (Just Leaf)) _ = b
swapNth b n = doToNth swapCurrentLeaf b n
growNthTowards :: Bound -> BinarySpacePartition a -> Int -> BinarySpacePartition a
growNthTowards :: Direction2D -> BinarySpacePartition a -> Int -> BinarySpacePartition a
growNthTowards _ (BinarySpacePartition Nothing) _ = emptyBSP
growNthTowards _ b@(BinarySpacePartition (Just Leaf)) _ = b
growNthTowards dir b n = doToNth (expandTreeTowards dir) b n
shrinkNthFrom :: Bound -> BinarySpacePartition a -> Int -> BinarySpacePartition a
shrinkNthFrom :: Direction2D -> BinarySpacePartition a -> Int -> BinarySpacePartition a
shrinkNthFrom _ (BinarySpacePartition Nothing) _ = emptyBSP
shrinkNthFrom _ b@(BinarySpacePartition (Just Leaf)) _ = b
shrinkNthFrom dir b n = doToNth (shrinkTreeFrom dir) b n